CN110220816A - A kind of optical fiber line style compound sensor railroad turnout tongue fracture real-time monitoring system - Google Patents
A kind of optical fiber line style compound sensor railroad turnout tongue fracture real-time monitoring system Download PDFInfo
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- CN110220816A CN110220816A CN201910340550.0A CN201910340550A CN110220816A CN 110220816 A CN110220816 A CN 110220816A CN 201910340550 A CN201910340550 A CN 201910340550A CN 110220816 A CN110220816 A CN 110220816A
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- Prior art keywords
- optical fiber
- line style
- pressure temperature
- sealing metal
- composite sensing
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 49
- 238000012544 monitoring process Methods 0.000 title claims abstract description 39
- 150000001875 compounds Chemical class 0.000 title claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002131 composite material Substances 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 239000011261 inert gas Substances 0.000 claims abstract description 15
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 14
- 238000012806 monitoring device Methods 0.000 abstract description 3
- 210000002105 tongue Anatomy 0.000 description 20
- 208000027418 Wounds and injury Diseases 0.000 description 7
- 208000014674 injury Diseases 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
- B61K9/10—Measuring installations for surveying permanent way for detecting cracks in rails or welds thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/204—Structure thereof, e.g. crystal structure
- G01N33/2045—Defects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The present invention relates to the monitoring device technical fields of railway track safety, refer in particular to a kind of optical fiber line style compound sensor railroad turnout tongue fracture real-time monitoring system, including line style sealing metal capillary, optical fiber pressure temperature complex sensor, transmission cable, signal acquisition and transmission unit, optical fiber pressure temperature composite sensing signal demodulation unit and computer, inert gas is filled in line style sealing metal capillary, optical fiber pressure temperature complex sensor is installed on one end end of line style sealing metal capillary, line style sealing metal capillary is adhered on the position of rail web or other easy fractures by High-strength adhesive, optical fiber pressure temperature complex sensor is connected to signal acquisition and transmission unit by transmission cable, signal acquisition and transmission unit are connected to optical fiber pressure temperature composite sensing signal demodulation unit, optical fiber pressure temperature Degree composite sensing signal demodulation unit is connected to computer.Atmospheric pressure value by monitoring inert gas judges the damage status of track tongue.
Description
Technical field
The present invention relates to the monitoring device technical fields of railway track safety, refer in particular to a kind of optical fiber line style compound sensor iron
Road point tongue is broken real-time monitoring system.
Background technique
Currently, railway transportation has become the main power of China Transportation Industry, have in national economy extremely important
Effect, in recent years, as heavy duty and a large amount of of speed-increase train are started, the accident that railway transportation occurs also happens occasionally, for base
The detection requirement of Infrastructure is higher and higher, it is ensured that its safe operation is most important, and track switch is changed as rail track, and route is joined
Isolated conversion equipment is the indispensable a part of rail track, when point machine running, tongue and stock rail
It the damage of close-fitting state and tongue or not is to influence a lethal factor of train driving, therefore produce monitoring railway switch point
The technology of track-like state.Currently, having about iron point tongue degree of injury and position monitoring method following several:
1) China Patent No. CN201810510480.4 " a kind of online railway monitoring system based on distributed acoustic sensor
System and method " described in on-line detecting system, by distributed acoustics sensor monitoring to acoustic signal it is easily affected by environment,
And the system cannot judge the intensity of anomaly of rail；
2) described in China Patent No. CN201110139596.X " fiber grating railway switch close contact monitoring device "
Monitoring system, the entire state for monitoring system and analyzing point tongue by the close-fitting state of point tongue and stock rail, Bu Nengjian
Survey degree of injury and the harm position of rail.
Currently, the document in relation to rail switch tongue degree of injury and position monitoring aspect is less, with existing monitoring side
Method cannot monitor position and the degree of injury of point tongue damage, prevent rail influences road from timely repairing simultaneously
Operation.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of fractures of optical fiber line style compound sensor railroad turnout tongue
Real-time monitoring system, the monitoring system can realize the on-line monitoring to railroad turnout tongue fracture damage, improve the maintenance of railway
Efficiency guarantees the personal safety and equipment safety of passenger.
To achieve the goals above, the technical solution that the present invention applies is as follows:
A kind of optical fiber line style compound sensor railroad turnout tongue fracture real-time monitoring system, including line style sealing metal hair
Tubule, optical fiber pressure temperature complex sensor, transmission cable, signal acquisition and transmission unit, optical fiber pressure temperature composite sensing
Signal demodulation unit and computer, line style sealing metal capillary is interior to be filled with inert gas, optical fiber pressure temperature composite sensing
Device is installed on one end end of line style sealing metal capillary, and line style sealing metal capillary is bonded by High-strength adhesive
On the position of rail web or other easy fractures, optical fiber pressure temperature complex sensor is connected to signal by transmission cable and adopts
Collection and transmission unit, signal acquisition and transmission unit are connected to optical fiber pressure temperature composite sensing signal demodulation unit, optical fiber pressure
Power temperature composite sensing signal demodulation unit is connected to computer.
Furthermore, the composite sensing unit of the optical fiber pressure temperature complex sensor includes two types, a kind of
The pressure and temp composite sensing list constituted for fiber F-P composite sensing unit, another kind for the FBG of two series connection and different wave length
Member, two FBG experience pressure and temperature respectively.
Furthermore, the caliber of the line style sealing metal capillary is 2~5mm, and pipe thickness is 0.5mm or so,
Tubing is made of lower metal or organic material.
Furthermore, the inert gas includes the argon gas that air pressure is 0.15~0.35Mpa.
The invention has the advantages that:
1) this monitoring system judges track tongue by the atmospheric pressure value of inert gas in monitoring line style sealing metal capillary
Damage status, structure is simple, is easy to monitor；
2) this monitoring system uses fast signal processing method, and data-signal collected is carried out quickly analysis and sentenced
It is disconnected, data are carried out with the real-time display of caching and track tongue state；
3) this monitoring system can the multiple track tongues of real time on-line monitoring degree of injury and fracture location, obtain different
Characteristic signal is with real-time monitoring railroad conditions；
4) this monitoring system uses all -fiber Detection Techniques, can avoid electromagnetic interference, and be easy to be multiplexed, and can carry out quasi- point
The multiple spot monitoring of cloth, cost is relatively low, stable and reliable for performance, substantially increases railroad track management level.
Detailed description of the invention
Fig. 1 is monitoring overall system architecture schematic diagram.
1. line style sealing metal capillary；2. inert gas；3. optical fiber pressure temperature complex sensor；4. transmission cable；
5. High-strength adhesive；6. signal acquisition and transmission unit；7. optical fiber pressure temperature composite sensing signal demodulation unit；8. calculating
Machine.
Specific embodiment
Technical solution of the present invention is illustrated with embodiment with reference to the accompanying drawing.
As shown in Figure 1, a kind of optical fiber line style compound sensor railroad turnout tongue of the present invention is broken real-time monitoring system
System, including line style sealing metal capillary 1, optical fiber pressure temperature complex sensor 3, transmission cable 4, signal acquisition and transmission list
Member 6, optical fiber pressure temperature composite sensing signal demodulation unit 7 and computer 8, line style sealing metal capillary 1 are interior filled with lazy
Property gas 2, optical fiber pressure temperature complex sensor 3 is installed on one end end of line style sealing metal capillary 1, line style sealing
Metal capillary 1 is adhered on the position of rail web or other easy fractures by High-strength adhesive 5, and optical fiber pressure temperature is multiple
It closes sensor 3 and signal acquisition and transmission unit 6 is connected to by transmission cable 4, signal acquisition and transmission unit 6 are connected to optical fiber
Pressure and temp composite sensing signal demodulation unit 7, optical fiber pressure temperature composite sensing signal demodulation unit 7 are connected to computer 8.
The above constitutes basic structure of the present invention.
The present invention uses such structure setting, and optical fiber pressure temperature complex sensor 3 is installed on line style sealing metal
On one end end of capillary 1, optical fiber line style pressure and temp composite sensing probe is constituted, it can be with real-time detection line style sealing metal
The pressure and temperature of inert gas 2 in capillary 1, line style sealing metal capillary 1 are adhered to rail by High-strength adhesive 5
On the position of the road web of the rail or other easy fractures, when the fracture of track tongue, 1 bending together of line style sealing metal capillary can be caused
The pressure of fracture, the inert gas 2 monitored so as to cause optical fiber pressure temperature complex sensor 3 sharply declines, accordingly can be real
When monitoring track fracture location and rupture time, the pressure signal that optical fiber pressure temperature complex sensor 3 is got pass through transmission
Optical cable 4 is real-time transmitted to signal acquisition and transmission unit 6, is then communicated to the optical fiber pressure temperature of the track monitoring room far from railway
It spends in composite sensing signal demodulation unit 7, obtains corresponding digital signal, demodulated by optical fiber pressure temperature composite sensing signal single
Member 7 passes the signal to computer 8, is compared with preset threshold value, judges degree of injury and the damage of track tongue
Position, and realize early warning and alarm.
In practical application, inert gas 2 acts on the composite sensing unit of optical fiber pressure temperature complex sensor 3.
In practical application, optical fiber pressure temperature composite sensing signal demodulation unit 7 in time solution 2 pressure of decoupling inert gas and
Temperature, when gas pressure is lower than preset threshold, system alarm.
In practical application, this monitoring system can using wavelength-division, time-division, space division hybrid multiplex technology by same instrument
To monitor a large amount of tongue operating statuses simultaneously.
In practical application, this monitoring system can the multiple track tongues of real time on-line monitoring degree of injury and fracture location,
Different characteristic signals is obtained with real-time monitoring railroad conditions.
In practical application, this monitoring system uses all -fiber Detection Techniques, can avoid electromagnetic interference, and be easy to be multiplexed,
Quasi-distributed multiple spot monitoring can be carried out, cost is relatively low, and it is stable and reliable for performance, substantially increase railroad track management level.
More specifically, the composite sensing unit of the optical fiber pressure temperature complex sensor 3 includes two types, a kind of
The pressure and temp composite sensing list constituted for fiber F-P composite sensing unit, another kind for the FBG of two series connection and different wave length
Member, two FBG experience pressure and temperature respectively.
More specifically, the caliber of the line style sealing metal capillary 1 is 2~5mm, and pipe thickness is 0.5mm or so,
Tubing is made of lower metal or organic material.Using such structure setting, it is easy to line style sealing metal capillary 1
Fracture.
More specifically, the inert gas 2 includes the argon gas that air pressure is 0.15~0.35Mpa.
In practical application, inert gas 2 can also use other air pressures for the inert gas of 0.15~0.35Mpa.
The above technical solution in the embodiment of the present invention is described, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, within these are all belonged to the scope of protection of the present invention.
Claims (4)
1. a kind of optical fiber line style compound sensor railroad turnout tongue is broken real-time monitoring system, it is characterised in that: including line style
Sealing metal capillary (1), optical fiber pressure temperature complex sensor (3), transmission cable (4), signal acquisition and transmission unit
(6), optical fiber pressure temperature composite sensing signal demodulation unit (7) and computer (8), the line style sealing metal capillary (1)
Interior to be filled with inert gas (2), the optical fiber pressure temperature complex sensor (3) is installed on line style sealing metal capillary (1)
One end end on, the line style sealing metal capillary (1) is adhered to rail web or other by High-strength adhesive (5)
On the position of easy fracture, the optical fiber pressure temperature complex sensor (3) is connected to signal acquisition by transmission cable (4) and passes
Defeated unit (6), the signal acquisition and transmission unit (6) are connected to optical fiber pressure temperature composite sensing signal demodulation unit (7),
The optical fiber pressure temperature composite sensing signal demodulation unit (7) is connected to computer (8).
2. a kind of optical fiber line style compound sensor railroad turnout tongue according to claim 1 is broken real-time monitoring system,
It is characterized by: the composite sensing unit of the optical fiber pressure temperature complex sensor (3) includes two types, one kind is optical fiber
F-P composite sensing unit, the pressure and temp composite sensing unit that another kind is constituted for the FBG of two series connection and different wave length, two
A FBG experiences pressure and temperature respectively.
3. a kind of optical fiber line style compound sensor railroad turnout tongue according to claim 1 is broken real-time monitoring system,
It is characterized by: the caliber of the line style sealing metal capillary (1) is 2~5mm, pipe thickness is 0.5mm or so, and tubing is adopted
It is made of lower metal or organic material.
4. a kind of optical fiber line style compound sensor railroad turnout tongue according to claim 1 is broken real-time monitoring system,
It is characterized by: the inert gas (2) includes the argon gas that air pressure is 0.15~0.35Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340550.0A CN110220816B (en) | 2019-04-25 | 2019-04-25 | Real-time monitoring system for fracture of railway switch rail by using optical fiber line type compound sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340550.0A CN110220816B (en) | 2019-04-25 | 2019-04-25 | Real-time monitoring system for fracture of railway switch rail by using optical fiber line type compound sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110220816A true CN110220816A (en) | 2019-09-10 |
| CN110220816B CN110220816B (en) | 2024-03-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910340550.0A Active CN110220816B (en) | 2019-04-25 | 2019-04-25 | Real-time monitoring system for fracture of railway switch rail by using optical fiber line type compound sensor |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008134162A (en) * | 2006-11-29 | 2008-06-12 | Akebono Brake Ind Co Ltd | Crash sensing method using pressure sensor |
| CN201126422Y (en) * | 2007-09-20 | 2008-10-01 | 许进 | Active pipe breach monitoring device |
| CN101887000A (en) * | 2010-06-02 | 2010-11-17 | 东华大学 | Hollow fiber pipe pressure measurement-based microcrack monitoring system |
| CN202814826U (en) * | 2012-06-05 | 2013-03-20 | 震宇（芜湖）实业有限公司 | Device for detecting crack defect of plastic part |
| CN105486353A (en) * | 2016-01-19 | 2016-04-13 | 山东科技大学 | Rock mass crack water comprehensive information sensor and use method thereof |
| CN108508097A (en) * | 2017-02-28 | 2018-09-07 | 香港理工大学 | A kind of rail crack monitoring system based on fiber ultrasonic guided wave technology |
| CN210376044U (en) * | 2019-04-25 | 2020-04-21 | 武汉理工大学 | Optical fiber linear composite sensor railway turnout switch rail fracture real-time monitoring system |
-
2019
- 2019-04-25 CN CN201910340550.0A patent/CN110220816B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008134162A (en) * | 2006-11-29 | 2008-06-12 | Akebono Brake Ind Co Ltd | Crash sensing method using pressure sensor |
| CN201126422Y (en) * | 2007-09-20 | 2008-10-01 | 许进 | Active pipe breach monitoring device |
| CN101887000A (en) * | 2010-06-02 | 2010-11-17 | 东华大学 | Hollow fiber pipe pressure measurement-based microcrack monitoring system |
| CN202814826U (en) * | 2012-06-05 | 2013-03-20 | 震宇（芜湖）实业有限公司 | Device for detecting crack defect of plastic part |
| CN105486353A (en) * | 2016-01-19 | 2016-04-13 | 山东科技大学 | Rock mass crack water comprehensive information sensor and use method thereof |
| CN108508097A (en) * | 2017-02-28 | 2018-09-07 | 香港理工大学 | A kind of rail crack monitoring system based on fiber ultrasonic guided wave technology |
| CN210376044U (en) * | 2019-04-25 | 2020-04-21 | 武汉理工大学 | Optical fiber linear composite sensor railway turnout switch rail fracture real-time monitoring system |
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| CN110220816B (en) | 2024-03-08 |
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